@inproceedings{oai:jaxa.repo.nii.ac.jp:00036936,
 author = {蒔田, 秀治 and 関下, 信正 and 佐々, 浩司 and Makita, Hideharu and Sekishita, Nobumasa and Sassa, Koji},
 book = {航空宇宙技術研究所特別資料, Special Publication of National Aerospace Laboratory},
 month = {Sep},
 note = {28-29 Sep. 1995 (17th). 28-29 Mar. 1996 (18th), 28-29 Sep. 1995 (17th). 28-29 Mar. 1996 (18th), R(sub λ)=80〜393の乱流場の統計的性質を実験的に調べた。乱流強度、エネルギースペクトル、および速度変動のPDF(確率密度分布)を求め、非等方テンソルスペクトルを導いた。乱流エネルギーと非等方テンソルの不変量Πとの関係は、等方化過程が、乱流の自己相似性に達する下流域で、減衰過程へと移行することを示した。l(sub D)を最大散逸渦スケール、l(sub G)を最大等方乱流渦スケールとしたとき、l(sub D)〜l(sub G)で定義した慣性小領域は、R(sub λ)=393について、1桁以上の波数領域をカバーした。減衰率および無限大極限のR(sub λ)でのKolmogorov定数についても推算した。, Statistical properties of turbulence fields of R(sub lambda) = 80-393 were experimentally examined. Turbulence intensities, energy spectrum and PDF (Probability Density Function) of velocity fluctuations were obtained and anisotropic tensor spectrum was introduced. The relation between the turbulence energy and the invariant capital pi of the anisotropic tensor showed that return to isotropy process proceeded decay process in the downstream region where the turbulence attained self similarity. The inertial subrange defined as l(sub D) of the order of l(sub G), where l(sub D) is the scale of the maximum dissipation, and l(sub G) is the scale of the largest locally isotropic eddy, covered the wavenumber range of more than one order of magnitude for R(sub lambda) = 393. The decay rate and the Kolmogorov constant of R(sub lambda) approaching infinity were also estimated., 資料番号: AA0000867005, レポート番号: NAL SP-33},
 pages = {23--27},
 publisher = {航空宇宙技術研究所, National Aerospace Laboratory (NAL)},
 title = {高レイノルズ数乱流の統計的性質},
 volume = {33},
 year = {1996}
}